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Attack on the uncastled king: bishop to a6 (f1·15)

c9-26653
Puzzle rating: 1630Theme: Chess960 twist: use the unusual starting setup of the pieces.
a8b7c6d5e4f3g2h1
White to move — find the best continuation

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The tactical motive

Chess960 twist: use the unusual starting setup of the pieces.

White to move — find the best continuation

Solution & explanation

Main line

12. Ba6+ Kb8 13. Qd8+ Qc8 14. Qxc8#

Why it works

  • Great move! bishop to a6 keeps the pressure (#2).
  • Well found: queen to d8 (#1).
  • Strong! queen to c8 is the sharp choice (#).
  • The line ends in a forced mate in 3.
  • If instead Kb8, then Qd8+ and you stay on top.

About this position

These pieces come from starting position #634.

Explore position #634

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